ADC (East Anglia) Ltd. is based with their head office near Wisbech in the UK. ADC provide specialist drainage services to customers such as the En¬vironment Agency throughout the whole of East Anglia and the South East. ADC's solutions are possible with dedicated experienced management, ex¬pert consultants and some of the very latest equipment. Their track record is obvious from the desirable customer base which includes: The Environ¬mental Agency, Norfolk, Cambridgeshire and Essex County Councils, Cam¬bridge University and many renowned civil engineers and construction com¬panies.

ADC were contacted by Technical Engineer Ian Watts from Black Sluice In¬ternal Drainage Board and asked to de-sludge a 250 meter section of fenland Dyke with limited access - which was unable to be cleaned by con¬ventional means. Michael Reeve and Steve Paige, the directors of ADC, contacted Simon Moos Maskinfabrik A/S to come up with a solution to the problem. Simon Moos Maskinfabrik A/S has tackled this and similar dewa¬tering challenges many times before and this specific interesting dewatering challenge - is the reason why ADC heavily invested in the AVC/DOD dewa-tering equipment from Simon Moos Maskinfabrik A/S. Turn to read more...

Both ends of the Dyke section were dammed and the water over pumped to reveal the sludge and debris below. Two conventional jet-vacs were used to remove the wet sludge and a team of men were placed in the dyke to work the suction hose. Once a jet-vac was filled the sludge was transferred via the DOD polymer make up and dosing unit which causes the separation be¬tween the solid and water fractions on-route to the AVC roll-on-off dewater¬ing container where the dewatered solids form a dry cake. The water frac¬tion or permeate is then allowed to return to the water course behind the gang working the wet sludge which is then re-used to assist the transit of the sludge to the jet-vacs. Once the dewatering process has finished the cake is then transported for disposal and the process is then repeated.

Product facts

The AVC (dewatering container) and the DOD (polymer and dosing unit) is a system characterized by:

Large volume reduction - typical > 90 %.

High dry matter percentage in dewatered sludge - normally > 15 %.

High COD and BOD5 reduction - up to 95%.

A mobile system with large draining capacity.

A well-tested system with 30 years development experience.

A system where you due to vol¬ume reduction obtain an attractive total economy as a result of re¬duced wages, fuel and depositing costs.

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